EP3511634B1 - Connection set - Google Patents

Description

The invention relates to a connection set according to the preamble of patent claim 1.

A connection set of the type mentioned above is from the protective rights document DE 298 21 805 U1 famous. This connection set consists of a first channel section for conducting a fluid in a first direction and a second channel section running parallel to the first channel section for conducting the same fluid, with both channel sections having connection flanges at their respective ends and an additional connection on their walls. Such a connection set is used to connect the flow and return lines of a heating system.

document DE 20 2013 105851 U1 discloses the preamble of claim 1.

The object of the invention is to improve a connection set of the type mentioned at the outset. In particular, a connection set with improved hydraulic functions is to be created.

This object is achieved with a connection set of the type mentioned by the features listed in the characterizing part of claim 1.

According to the invention, it is therefore provided that on the walls of the two channel sections, in addition to the connecting flanges and the additional connections, a connection to a third channel section designed to guide the fluid from one channel section to the other is provided.

In other words, the connection set according to the invention is characterized in that it enables a fluid exchange between the first and the second channel section. This is achieved in that the three channel sections are connected to one another fluidically and in the form of a hydraulic switch. Thanks to this three-chamber technology, there is an optimal hydraulic balance between a primary and a secondary circuit.

Advantageous developments of the connection set according to the invention result from the dependent patent claims.

For the sake of completeness, reference is made to the patent document DE 10 2015 117 997 A1 referenced, but from which a third channel section is just as little known as from the prior art mentioned at the outset. In addition, with the solution according to this patent document, a hydraulic switch is only possible at the end of an entire line, while with the solution according to the invention, each section (if several are provided, which will be discussed in more detail below) can be provided with a switch.

The connection set according to the invention, including its advantageous developments according to the dependent patent claims, is explained in more detail below with reference to the graphic representation of a preferred exemplary embodiment.

Figur 1

perspektivisch das erfindungsgemäße Anschluss-Set;

Figur 2

perspektivisch und im Längsschnitt das Anschluss-Set gemäß Figur 1; und

Figur 3

perspektivisch und im Querschnitt das Anschluss-Set gemäß Figur 1 und 2.

It shows

figure 1

in perspective the connection set according to the invention;

figure 2

Perspective and longitudinal section according to the connection set figure 1 ; and

figure 3

Perspective and in cross-section the connection set according to Figure 1 and 2 .

The connection set shown in the figures initially consists in a known manner of a first channel section 1 for guiding a fluid and a second channel section 2 running parallel to the first for guiding the same fluid, with both channel sections 1, 2 having connecting flanges 1.1 , 2.1 and each have an additional connection 1.2, 2.2 on their wall.

As can also be seen from the figures, the channel sections 1, 2, 3 are designed to extend horizontally according to the invention.

The connection flanges 1.1, 2.1, which are also based on the model according to the DE 298 21 805 U1 can be designed as a common flange, are used either for connection to a heating circuit of a building or, if several heaters are to be arranged next to each other, for which the connection set is particularly preferably used, for the connection of one or more further connection sets. Each individual heater is connected to the connection set via the additional connections 1.2, 2.2.

It is essential for the connection set according to the invention, preferably cast technically, in particular from gray cast iron, that on the walls of the two channel sections 1, 2 in addition to the connection flanges 1.1, 2.1 and the additional connections 1.2, 2.2 each have a connection 3.1, 3.2 to a for guiding the fluid from one channel section 1, 2 to the other, third channel section 3 is provided.

According to the invention, the third channel section 3 is arranged between the first and second channel sections 1 , 2 . Looking at it a little more closely, it is provided that the third duct section 3 is arranged above the first duct section 1 and below the second duct section 2 .

Furthermore, it is preferably provided that the connections 3.1, 3.2 are arranged at opposite ends of the third channel section 3. In addition, it is preferably provided that the connection 3.2 connected to the second channel section 2 is arranged above the connection 3.1 connected to the first channel section 1.

Furthermore, it is particularly preferably provided that the third duct section 3 optionally has a common wall section 1.3 with the first duct section 1 and/or a common wall section 2.3 with the second duct section 2, in which case it is further particularly preferred that the connection 3.1, 3.2 is designed as a through-opening on the common wall section 1.3, 2.3.

Furthermore, it is preferably provided that the additional connections 1.2, 2.2 are arranged on mutually adjacent ends of the two channel sections 1, 2.

In addition, it is provided that optionally the first and/or second channel section 1, 2, preferably the second channel section 2, provided at its highest point with a vent valve 4 is formed.

It is also provided that at least one of the two additional connections 1.2, 2.2, preferably the additional connection 1.2 belonging to the first duct section 1, is provided with a pump 5, in particular a heating circuit pump.

Finally, it is provided that at least one of the channel sections 1, 2, 3, preferably the first channel section 1, is provided with an emptying connection 6 at its deepest point.

The connection set according to the invention, which works as a hydraulic switch, works as follows:
A flow connection of a heater (typically a wall-mounted gas or oil boiler) is hydraulically connected to the additional connection 2.2, i.e. comparatively warm fluid (heating circuit water) coming from the heater flows via the connection flange 2.1 into a heating circuit, which can optionally be equipped with radiators and/or hot water storage is provided.

If several heaters are provided, several connection sets can be arranged next to one another and connected to one another via the connection flanges 1.1, 2.1. If only one heater is provided, two of the four connection flanges 1.1, 2.1 are closed with a cover element, unless the system also has a hot water tank.

Comparatively cold fluid returning from the heating circuit is fed to the connection set via the connection flange 1.1. From there, this fluid flows via the additional connection 1.2, which is provided with a pump 5 in its further course, to a return connection of the heater.

It follows from the above explanations that it is provided according to the invention that the first, lower duct section 1 is provided for conducting a comparatively cold fluid and the second, upper duct section 2 is provided for conducting a comparatively warm fluid. Furthermore, it follows from the above explanations that the first channel section 1 can be designed to guide the fluid in a first direction and the second channel section 2 can be designed to guide the fluid in a second direction opposite to the first direction.

If a power or pressure equalization between the heating circuit and the heater (i.e. between the primary and the secondary circuit) should be necessary, this can be done in an optimal way via the channel section 3, in that the fluid from one of the two channel sections 1, 2 flows via the connection 3.1, 3.2 into the third channel section 3 and from there into the other channel section 2, 1. Due to the layering of the fluid in the third channel section 3 resulting from the structure of the connection set according to the invention, this equalization takes place with a very low loss of energy.

Finally, for the sake of completeness, it is pointed out that it can also be provided that one connecting flange 2.1 forms the flow to the heating circuit(s) and the opposite connecting flange 1.1 forms the corresponding return.

reference list

1

first canal section

1.1

connection flange

1.2

auxiliary connection

1.3

wall section

2

second canal section

2.1

connection flange

2.2

auxiliary connection

2.3

wall section

3

canal section

3.1

connection

3.2

connection

4

vent valve

5

pump

6

drain connection

Claims (7)

1. Connection set comprising a first channel section (1) for the conveying a fluid and a second channel section (2) running parallel to the first one for conveying the same fluid, wherein both channel sections (1, 2) comprise connection flanges (1.1, 2.1) at their respective ends and an additional connection (1.2, 2.2) on their wall, wherein,

   in addition to the connection flanges (1.1, 2.1) and the additional connections (1.2, 2.2), a connection (3.1, 3.2) to a third channel section (3) designed to convey the fluid from one channel section to the other channel section (1, 2) is provided on the walls of the two channel sections (1, 2), wherein the channel sections (1, 2, 3) extend horizontally,

   characterized in

   that the third channel section (3) is arranged between the first and second channel sections (1, 2),

   that the third channel section (3) is arranged above the first channel section (1) and below the second channel section (2),

   that the first, lower channel section (1) is provided for conveying a comparatively cold fluid, and the second upper channel section (2) is provided for conveying a comparatively warm fluid.
2. Connection set according to claim 1,
   characterized in
   that the connections (3,1, 3.2) are arranged at opposing ends of the third channel section (3).
3. Connection set according to claim 1 or 2,
   characterized in
   that the connection (3.2) connected to the second channel section (2) is arranged above the connection (3.1) connected to the first channel section (1).
4. Connection set according to any one of the claims 1 to 3,
   characterized in
   that the third channel section (3) optionally comprises a common wall section (1.3) with the first channel section (1) and/or a common wall section (2.3) with the second channel section (2).
5. Connection set according to claim 4,
   characterized in
   that the connection (3.1, 3.2) is designed as a passage opening on the common wall section (1.3, 2.3).
6. Connection set according to any one of the claims 1 to 5,
   characterized in
   that the additional connections (1.2, 2.2) are arranged at adjacent ends of the two channel sections (1, 2).
7. Connection set according to any one of the claims 1 to 6,
   characterized in
   that this is manufactured by means of casting technology, in particular, being made of grey cast iron.

Images